<?php
namespace app\models;
use yii\base\Object;

class uuid extends Object
{

	//公用id
    public function generateuuid()
	{
		$charid = strtoupper(md5(uniqid(mt_rand(), true)));
		$hyphen = '';
	    $hyphen = chr(45);
		$uuid = substr($charid, 0, 8).$hyphen
			   .substr($charid, 8, 4).$hyphen
			   .substr($charid,12, 4).$hyphen
			   .substr($charid,16, 4).$hyphen
			   .substr($charid,20,12);
		return $uuid;
	}
}
